Answer:
StartFraction 8 Over 25
Explanation:
What is the product of StartFraction 4 Over 5 EndFraction times two-fifths? 
Mathematically = 
StartFraction 4 Over 5 EndFraction = 4/5
 Two- fifths = 2/5
Hence, 
The product of StartFraction 4 Over 5 EndFraction times two-fifths
= 4/5 × 2/5
= 8/25
The correct option =
StartFraction 8 Over 25 EndFraction